f_sendcmd.c File Reference

send commands filter More...

#include "config_components.h"
#include "libavutil/avstring.h"
#include "libavutil/bprint.h"
#include "libavutil/eval.h"
#include "libavutil/file.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "avfilter.h"
#include "filters.h"
#include "audio.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	Command
struct	Interval
struct	SendCmdContext

Macros
#define	COMMAND_FLAG_ENTER   1
#define	COMMAND_FLAG_LEAVE   2
#define	COMMAND_FLAG_EXPR   4
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_VIDEO_PARAM
#define	SPACES   " \f\t\n\r"
#define	COMMAND_DELIMS   " \f\t\n\r,;"
#define	DELIMS   " \f\t\n\r,;"
#define	WITHIN_INTERVAL(ts, start_ts, end_ts)

Enumerations
enum	var_name {   VAR_N , VAR_T , VAR_PTS , VAR_TS ,   VAR_TE , VAR_TI , VAR_W , VAR_H ,   VAR_VARS_NB }

Functions
static char *	make_command_flags_str (AVBPrint *pbuf, int flags)
static void	skip_comments (const char **buf)
static void	clear_command (Command *cmd)
	Clears fields and frees the buffers used by cmd.
static int	parse_command (Command *cmd, int cmd_count, int interval_count, const char **buf, void *log_ctx)
static int	parse_commands (Command **cmds, int *nb_cmds, int interval_count, const char **buf, void *log_ctx)
static int	parse_interval (Interval *interval, int interval_count, const char **buf, void *log_ctx)
static int	parse_intervals (Interval **intervals, int *nb_intervals, const char *buf, void *log_ctx)
static int	cmp_intervals (const void *a, const void *b)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *ref)
	AVFILTER_DEFINE_CLASS_EXT (sendcmd, "(a)sendcmd", options)

Variables
static const char *const	var_names []
static const AVOption	options []

Detailed Description

send commands filter

Definition in file f_sendcmd.c.

Macro Definition Documentation

COMMAND_FLAG_ENTER

#define COMMAND_FLAG_ENTER   1

Definition at line 40 of file f_sendcmd.c.

Referenced by filter_frame(), and parse_command().

COMMAND_FLAG_LEAVE

#define COMMAND_FLAG_LEAVE   2

Definition at line 41 of file f_sendcmd.c.

Referenced by filter_frame(), and parse_command().

COMMAND_FLAG_EXPR

#define COMMAND_FLAG_EXPR   4

Definition at line 42 of file f_sendcmd.c.

Referenced by filter_frame(), and parse_command().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(SendCmdContext, x)

Definition at line 110 of file f_sendcmd.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_VIDEO_PARAM

Definition at line 111 of file f_sendcmd.c.

SPACES

#define SPACES   " \f\t\n\r"

Definition at line 120 of file f_sendcmd.c.

Referenced by parse_command(), parse_command(), parse_commands(), parse_interval(), parse_intervals(), and skip_comments().

COMMAND_DELIMS

#define COMMAND_DELIMS   " \f\t\n\r,;"

Definition at line 139 of file f_sendcmd.c.

Referenced by parse_command().

DELIMS

#define DELIMS   " \f\t\n\r,;"

Definition at line 287 of file f_sendcmd.c.

Referenced by parse_interval().

WITHIN_INTERVAL

#define WITHIN_INTERVAL	(		ts,
			start_ts,
			end_ts )

Value:

((ts) >= (start_ts) && (ts) < (end_ts))

Referenced by filter_frame().

Enumeration Type Documentation

var_name

enum var_name

Enumerator
VAR_N
VAR_T
VAR_PTS
VAR_TS
VAR_TE
VAR_TI
VAR_W
VAR_H
VAR_VARS_NB

Definition at line 56 of file f_sendcmd.c.

Function Documentation

make_command_flags_str()

static char * make_command_flags_str ( AVBPrint * pbuf, int flags )

inlinestatic

Definition at line 68 of file f_sendcmd.c.

Referenced by filter_frame(), init(), and parse_commands().

skip_comments()

static void skip_comments ( const char ** buf )

static

Definition at line 122 of file f_sendcmd.c.

Referenced by parse_intervals().

clear_command()

static void clear_command ( Command * cmd )

static

Clears fields and frees the buffers used by cmd.

Definition at line 144 of file f_sendcmd.c.

Referenced by parse_command(), parse_commands(), and uninit().

parse_command()

static int parse_command ( Command * cmd, int cmd_count, int interval_count, const char ** buf, void * log_ctx )

static

Definition at line 153 of file f_sendcmd.c.

Referenced by parse_commands().

parse_commands()

static int parse_commands ( Command ** cmds, int * nb_cmds, int interval_count, const char ** buf, void * log_ctx )

static

Definition at line 236 of file f_sendcmd.c.

Referenced by parse_interval().

parse_interval()

static int parse_interval ( Interval * interval, int interval_count, const char ** buf, void * log_ctx )

static

Definition at line 289 of file f_sendcmd.c.

Referenced by parse_intervals().

parse_intervals()

static int parse_intervals ( Interval ** intervals, int * nb_intervals, const char * buf, void * log_ctx )

static

Definition at line 359 of file f_sendcmd.c.

Referenced by init().

cmp_intervals()

static int cmp_intervals ( const void * a, const void * b )

static

Definition at line 410 of file f_sendcmd.c.

Referenced by init().

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 417 of file f_sendcmd.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 476 of file f_sendcmd.c.

filter_frame()

static int filter_frame ( AVFilterLink * inlink, AVFrame * ref )

static

Definition at line 492 of file f_sendcmd.c.

AVFILTER_DEFINE_CLASS_EXT()

AVFILTER_DEFINE_CLASS_EXT	(	sendcmd	,
		"(a)sendcmd"	,
		options	)

Variable Documentation

var_names

const char* const var_names[]

static

Initial value:

= {
    "N",     
    "T",     
    "PTS",   
    "TS",    
    "TE",    
    "TI",    
    "W",     
    "H",     
    NULL
}

Definition at line 44 of file f_sendcmd.c.

options

const AVOption options[]

static

Initial value:

= {
    { "commands", "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { "c",        "set commands", OFFSET(commands_str), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { "filename", "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { "f",        "set commands file",  OFFSET(commands_filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
    { NULL }
}

Definition at line 112 of file f_sendcmd.c.